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May 25th, 2009
EarthTalk: What is nanotechnology?
Abstract:
Dear EarthTalk: What is "nanotechnology"? I've heard that nanoparticles are already in consumer products, yet we haven't really studied their potential health impacts.
- Dan Zeff, San Francisco
Nanotechnology makes use of minuscule objects - whose width can be 10,000 times narrower than a human hair - known as nanoparticles. Upwards of 600 products on store shelves today contain them, including transparent sunscreen, lipsticks, anti-aging creams and even food products.
Global nanotechnology sales have grown substantially in recent years, to $50 billion in 2007, according to Lux Research, author of the annual Nanotech Report. And the final tally isn't in yet, but analysts had predicted 2008 sales to be $150 billion. The National Science Foundation says the industry could be worth $1 trillion by 2015, when it would employ two million workers directly.
Source:
miamiherald.com
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